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GPT-4 API Pricing: How much does it cost?

Welcome to our straightforward guide on GPT-4 API pricing. In this article, we’ll get to the heart of what it costs to use the GPT-4 API. We’ll break down the concept of tokens, explain their role in the pricing model, and help you understand how this all adds up. Plus, we’ll compare GPT-4 API prices with ChatGPT Plus subscription costs to give you a clearer picture. So, whether you’re a developer, business owner, or AI enthusiast, stick with us as we untangle the ins and outs of GPT-4 API pricing.

gpt 4 price


The GPT-4 API is a revolutionary platform, allowing users to leverage the capabilities of GPT-4. It is a large multimodal model with advanced reasoning capabilities and broader general knowledge than any of its predecessors. GPT-4 can handle tasks with superior precision, accepting text inputs, emitting text outputs. It will also be able to handle image inputs in the future.

Is GPT-4 API free?

The GPT-4 API is not free to use. Pricing for GPT-4 API usage is based on the concept of tokens, which are units of language processed by the API.

How much does the GPT-4 API cost?

The pricing for GPT-4 API is based according to context lengths. For models with 8k context lengths (e.g., GPT-4 and GPT-4-0314), the price is $0.03 per 1k prompt tokens and $0.06 per 1k sampled tokens. For models with 32k context lengths (e.g., GPT-4-32k and GPT-4-32k-0314), the price is $0.06 per 1k prompt tokens and $0.12 per 1k sampled tokens.

What are tokens?

Tokens are units of language processed by the GPT-4 API. In English text, one token is approximately equivalent to 4 characters or 0.75 words. For example, the collected works of Shakespeare, consisting of about 900,000 words, equates to approximately 1.2M tokens.

Prompt tokens refer to the input you send to the chat completion model (your question or command), while sampled tokens pertain to the output generated by the model (the model’s response).

To learn more about tokens and how to estimate your usage, you can utilize OpenAI’s official Tokenizer tool. This tool allows you to compute the number of tokens in a specific piece of text, providing you with a better understanding of your potential usage.

GPT-4 Price vs GPT-3.5 Price

Comparing the pricing of GPT-4 and GPT-3.5, it is clear that the cost of using GPT-4 is significantly higher. For instance, while GPT-3.5-turbo costs $0.002 per 1k tokens, GPT-4 pricing starts at $0.03 per 1k prompt tokens and $0.06 per 1k sampled tokens. This represents an increase of around 15 times for prompt tokens and 30 times for sampled tokens when switching from GPT-3.5-turbo to GPT-4.

The pricing for GPT-4 and GPT-3.5 is different and depends on the model’s capabilities. While GPT-4 is more capable and can handle more complex tasks, the GPT-3.5 model, particularly GPT-3.5-turbo, is the most cost-effective. This makes it a preferred choice for tasks not requiring the superior capabilities of GPT-4.

ChatGPT Plus Subscription versus GPT-4 API Usage

ChatGPT Plus is a subscription service priced at $20 per month. While you can utilize the GPT-4 model through a ChatGPT Plus subscription, your level of control doesn’t equate to what you can exercise via the API, as it doesn’t allow for parameter alterations. Additionally, ChatGPT has a usage limitation, capping GPT-4 usage at 25 messages every 3 hours. In comparison, GPT-4 API’s pricing depends on the number of tokens processed, with the cost varying based on whether you’re using the model with 8k or 32k context lengths.

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